应用化学 ›› 2010, Vol. 27 ›› Issue (09): 1114-1116.DOI: 10.3724/SP.J.1095.2010.90744

• 研究简报 • 上一篇    

脉冲复合镀涂层的制备及其高温氧化动力学

陈尚东1,2*,孙挺1,年宏2   

  1. (1.东北大学理学院 沈阳 110004;2.沈阳化工学院应用化学学院 沈阳 110142)
  • 收稿日期:2009-11-11 修回日期:2010-01-12 出版日期:2010-09-10 发布日期:2010-09-10
  • 通讯作者: 陈尚东,男,副教授; E-mail:codonicol@163.com; 研究方向:金属的腐蚀与防护
  • 基金资助:
    辽宁省教育厅资助项目(2005325)

Oxidation Kinetics of Composite Pulse Plated Coatings of Ordinary Steel at High Temperature

CHEN Shang-Dong1,2* , SUN Ting1, NIAN Hong2   

  1. (1.Science College,Northeast University,Shenyang 110004;
    2.Shenyang Institute of Chemical Technology,Shenyang 110142)
  • Received:2009-11-11 Revised:2010-01-12 Published:2010-09-10 Online:2010-09-10

摘要:

水基体系内采用脉冲复合电镀法将镍包铝粉镀到普通碳钢(A3)表面,并与直流电镀结果进行了比较。 结果显示,脉冲复合镀镀层晶粒大小均匀,结合紧密,晶相稳定,镀覆完整,经过热处理,镀层与基体金属之间相互渗透并形成金属间化合物,与钢基体结合牢固,热重分析实验显示此脉冲复合镀镀层经过热处理后显著提高了基体的高温抗氧化性。

关键词: 脉冲电镀, A3碳钢, 热处理, 氧化动力学

Abstract:

Pulse plating technology was used to plate fine aluminum powder wrapped with nickel on the surface of A3 carbon steel in nickel sulfate bath. A dense and full covered coating with uniform crystallite size could be obtained. The coating prepared from the pulse plating is better than that prepared from a direct current plating in terms of morphology, structure and mechanical stability. Upon annealing at high temperature, Ni-Al alloy was formed. The alloyed coatings could adhere strongly to the steel substrate and the composite coating shows an enhanced resistance to oxidation at high temperatures.

Key words: Pulse Plating, A3 carbon steel, Heat treating, oxidation kinetics

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